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Videx VANDAL RESISTANT Manuel d'utilisateur Page 13

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PAGE 13 of 24 AUDIO/VIDEO VANDAL RESISTANT TECHNICAL MANUAL VER1.0
Lock release back EMF protection : A capacitor must be fitted across the terminals on
an AC lock release and a diode must be fitted across the terminals on a DC lock release
as shown in the diagrams below to suppress back EMF voltages.
LOCK RELEASE
12V AC
~~
0.1uF capacitor
+
-
1N4002
+
-
12V DC
LOCK RELEASE
DIODE
CABLE SIZE GUIDE
AUDIO SYSTEM
Connections from door panel to telephone.
Connections 50m 100m 200m 300m 400m
1
0.25mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
2
0.25mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
3
0.5mm² 0.75mm² 1.5mm² 2.0mm² 2.5mm²
5
0.5mm² 0.75mm² 1.5mm² 2.0mm² 2.5mm²
6
0.25mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
When ever possible connection 1(Tx) should be twisted with connection 3(Gnd) and connection 2(Rx) should
be twisted with connection 3(Gnd) as pairs.
Maximum acceptable resistance for terminals 1,2 & 6 = 10Ω and for terminals 3 & 5 = 3Ω
Connections for power supply output to door panel and lock release connections.
50m 100m
Connections
0.5mm² 0.75mm²
The power supply should be located as close to the door panel as possible for best performance.
Maximum acceptable resistance for above cables = 3Ω
VIDEO SYSTEM
Connections from door panel to the Art.890 controller.
Connections 50m 100m 200m 300m 400m
T
0.35mm² 0.5mm² 0.5mm² 0.75mm² 1.0mm²
A
0.5mm² 1.0mm² 1.5mm² 2.0mm² 2.5mm²
+8
0.35mm² 0.5mm² 0.75mm² 1.0mm² 1.5mm²
F
0.35mm² 0.5mm² 0.75mm² 1.0mm² 1.5mm²
I
0.35mm² 0.5mm² 1.0mm² 1.5mm² 2.0mm²
G2
0.35mm² 0.35mm² 0.5mm² 0.75mm² 1.0mm²
H1
0.35mm² 0.5mm² 0.75mm² 1.0mm² 1.5mm²
F1
0.35mm² 0.5mm² 0.75mm² 1.0mm² 1.5mm²
F2
0.35mm² 0.5mm² 0.75mm² 1.0mm² 1.5mm²
SE
0.5mm² 1.0mm² 1.5mm² 2.0mm² 2.5mm²
V
Standard quality Medium quality Good quality Good quality High quality
M
75Ω Coax cable 75Ω Coax cable 75Ω Coax cable 75Ω Coax
cable
75Ω Coax
cable
When ever possible connection H1(Tx) should be twisted with connection F(Gnd) and connection G2(Rx)
should be twisted with connection F(Gnd) as pairs.
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